Choose ULTRAKILL
Choose ULTRAKILL if you want an Indie and Early Access experience. On Steam, it's Steam Deck Verified, so handheld play works out of the box. 141,047 Steam reviews back the pick.
ULTRAKILL vs KILLFLOW
ULTRAKILL and KILLFLOW both land in Action on Steam, which is why they keep getting compared. The comparison below is built from each game's Steam metadata — release year, genres, categories, Steam Deck status, price, and review score — refreshed daily by imho.run's scraper. Headline differences: Both are Action games on Steam. ULTRAKILL is Deck Verified on Steam Deck; KILLFLOW has no Deck rating yet. No login or purchase needed — scroll for the full table, the verdict FAQ, and links to ranked similar games for both titles.
Which should you pick?
Choose KILLFLOW
Choose KILLFLOW if it matches what drew you to this matchup.
Both ULTRAKILL and KILLFLOW sit in Action on Steam, so either pick lands in the same broad neighborhood. Use the side-by-side table for the feature view, or follow the "Games like" links below to see ranked alternatives for either title.
Side-by-side comparison
 ULTRAKILL |  KILLFLOW | |
|---|---|---|
| Released | 2020 | — |
| Genres | Action, Indie, Early Access | Action |
| Platforms | Windows | Windows, Linux |
| Steam Deck | Deck Verified | Unrated |
| Price | 24.99 USD | Price unknown |
| Steam reviews | 97.7% positive (141,047 reviews) | — |
| Multiplayer | Single-player only | Single-player only |
| Developers | Arsi "Hakita" Patala | ClusterFame Games |
Side by side
- Both are Action games on Steam.
- ULTRAKILL is Deck Verified on Steam Deck; KILLFLOW has no Deck rating yet.
ULTRAKILL vs KILLFLOW — FAQ
- Are ULTRAKILL and KILLFLOW similar?
- They overlap on Action on Steam, so the catalogue groups them together — but "similar" depends on the specific mechanics. Use the genre + category rows above to decide whether the overlap matches what drew you to the one you've already played.
- Does ULTRAKILL run on Steam Deck?
- Yes — ULTRAKILL is rated Deck Verified by Valve. KILLFLOW doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.